ꢀ ꢁꢂꢃ ꢄ ꢅ ꢆ ꢇ ꢅꢈ ꢉ ꢀ ꢁ ꢂꢃ ꢄꢅ ꢆꢀꢊ ꢆ
ꢋ ꢌꢀ ꢀꢍ ꢎꢏꢐꢋꢌꢑ ꢒꢇꢁ ꢂꢇ ꢁꢍꢎꢓꢔ ꢂꢕ ꢎꢂ ꢖ ꢕꢎ ꢎꢌꢗ ꢎꢍꢀ ꢍꢘ ꢀꢔ ꢕ ꢘ
SLVS327B – DECEMBER 2000 – REVISED DECEMBER 2002
features
typical applications
D
D
D
D
D
D
Supply Current of 40 µA (Max)
D
Fax Machines
Battery Supply Current of 100 nA (Max)
D
D
D
D
D
D
D
D
Set-Top Boxes
Precision Supply-Voltage Monitor,
1.8 V, 5 V; Other Options on Request
Advanced Voice Mail Systems
Portable Battery-Powered Equipment
Computer Equipment
Watchdog Timer With 800-ms Time-Out
Backup-Battery Voltage Can Exceed V
DD
Advanced Modems
Power-On Reset Generator With Fixed
100-ms Reset Delay Time
Automotive Systems
Portable Long-Time Monitoring Equipment
Point of Sale Equipment
D
Battery-OK Output
D
Voltage Monitor for Power-Fail or
Low-Battery Monitoring
TPS3610
TSSOP (PW) Package
(TOP VIEW)
D
D
D
D
D
Manual Switchover to Battery-Backup
Mode
1
2
3
4
5
6
7
14
13
12
11
10
9
V
V
BAT
RESET
OUT
Chip-Enable Gating . . . 3 ns (at V
Max Propagation Delay
= 5 V)
DD
V
DD
GND
MSWITCH
CEIN
WDI
LOWLINE
CEOUT
BATTOK
PFO
Battery-Freshness Seal
14-pin TSSOP Package
BATTON
PFI
8
Temperature Range . . . –40°C to 85°C
ACTUAL SIZE
(5,10mm x 6,60mm)
typical operating circuit
Address
Decoder
Power
Supply
0.1 µF
External
CEIN
CE
CMOS
RAM
CE
CMOS
RAM
CEOUT
Address Bus
Real-
Time
Clock
Backup
Battery
Source
V
V
BAT
DD
TPS3610
R
R
x
y
uC
V
V
V
CC
CC
CC
PFI
8
8
RESET
RESET
WDI
I/O
Data Bus
16
I/O
I/O
I/O
I/O
PFO
BATTOK
BATTON
LOWLINE
Switchover
Capacitor
MSWITCH
V
OUT
V
CC
0.1 µF
GND
GND
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Copyright 2002, Texas Instruments Incorporated
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1
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